JP2002015809A - Pressure contact connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure contact connector, having an improvement in assembling it to a housing body by regulating undesired displacements during the rotation of a rear holder which turns a hinge as a spindle. SOLUTION: The rear holder 4, linked turnably to the housing body 2 via the hinge 3 is engaged with the inside of a guide space 7 extended along the direction from the front to the back of the connector, and is equipped with a sliding lever 4B moving along its turning.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure contact connector, and more particularly, to protecting a pressure contact terminal accommodated in a terminal accommodation chamber by covering an opening formed above a terminal accommodation chamber with a rear holder, and providing a pressure contact terminal. The present invention relates to an improvement in a connector with a rear holder that prevents a connected electric wire from coming off.

[0002]

2. Description of the Related Art In vehicles such as automobiles, connectors are frequently used to connect wire harnesses or to connect electronic equipment to wire harnesses. This type of connector has various configurations, and an example of a press-connecting connector having a rear holder will be described below with reference to FIGS. As shown in FIG. 6, the press-connecting connector 21 has a hinge 2 on the housing main body 22 and upper and lower walls 22 </ b> C of the housing main body 22.
And a rear holder 24 that is rotatably connected to the upper and lower walls 3 so as to be able to close openings 27 formed on the rear end sides of the upper and lower wall surfaces. Note that a plurality of terminal accommodating chambers 25 are provided in the housing main body 22 in parallel.
Accommodates a press contact terminal 31.

The pressure contact terminal 31 is provided with a pressure contact portion 31A provided in the middle of the elongated body, an electric connection portion 31B provided in front of the pressure contact portion 31A (see FIG. 7), and provided behind the pressure contact portion 31A. And an electric wire caulking portion 31C. As shown in FIG. 7, a pocket 25 </ b> A is provided on the front side of the housing main body 22 so that the upper and lower walls 22 </ b> C are provided to accommodate the electrical connection portion 31 </ b> B. Locking groove 2 at the inner rear end
2B is formed.

[0004] The rear holder 24 covers the terminal accommodating chamber 25, protects the press contact terminal 31, and prevents the electric wire 32 connected to the press contact terminal 31 from coming out of the housing body 22. It is formed in a plate-like body shown in FIGS. The inner surface of the rear holder 24, that is, the upper surface shown in FIG. 6, protrudes from the inner surface at a position corresponding to each terminal accommodating chamber 25, and when the rear holder 24 is closed, the pressure contact terminals 31 in the terminal accommodating chamber 25 A locking projection 26 is provided that locks and prevents lifting of the press contact terminal 31. Lock projections 24A are provided on the left and right ends of the rear holder 24. When the rear holder 24 is closed, the locking grooves 22
B and the closed state of the rear holder 24 is maintained.

The press-connecting connector 21 configured as described above
When the rear holder 24 is closed by rotating the rear holder 24 with the hinge 23 as a support shaft, the locking projection 24A can be locked in the locking groove 22B. And in this closed state,
As shown in FIG. 7, since the rear holder 24 is prevented from lifting itself, the locking projection 26 presses the electric wire 32 from above to prevent the rear holder 24 from coming out of the press contact terminal 31 and to prevent the rear contact terminal 31 from coming out. The position is regulated to a predetermined position in the terminal accommodating chamber 25.

[0006]

However, in the above-mentioned conventional structure, the hinge 23 is formed in a band shape and has flexibility, so that when the rear holder 24 is closed, When the rear holder 24 receives an external force from the lateral direction in addition to being curved or deformed linearly,
The rear holder 24 is also easily bent and deformed in the width direction. For this reason, the entire rear holder 24 is displaced in the direction of the rotation axis, and it is difficult to close the rear holder 24 at the regular position, and there has been a problem that the workability at the time of assembly is deteriorated. The rear holder 24 is provided with a locking projection 24A of the housing body 22.
Is able to maintain the closed state satisfactorily by engaging with the locking groove 22. However, when a greater impact force than the rear end side is received, the hinge 23 side end is closed by the upper and lower walls 22C.
He climbed up from the surface and eventually opened.

The present invention has been made in view of the above circumstances, and when closing a rear holder rotatably connected to a housing main body via a hinge, undesired displacement of the rear holder is regulated to improve assemblability. Another object of the present invention is to provide a press-connecting connector that can always maintain the closed state of the rear holder.

[0008]

According to a first aspect of the present invention, there is provided a press-connecting connector according to the present invention, comprising: a housing main body having an upper opening and a plurality of terminal accommodating chambers arranged side by side; In a press-connecting connector comprising a press-contact terminal accommodated in a terminal accommodating chamber and a rear holder rotatably connected to the housing body via a hinge and closing the upper opening, A guide space extending along the hinge, and a sliding rod projecting from a hinge-side end of the rear holder and engaging with the guide space when the rear holder is rotated. The sliding rod is engaged with the guide space. In addition, the displacement of the rear holder in the rotation axis direction is regulated.

In the rear holder, since the sliding rod protruding from the left and right ends is engaged with the guide space of the housing main body to rotate, the rear holder can receive an external force in the left-right direction (lateral direction). The displacement in the rotation axis direction is restricted by the engagement between the sliding rod and the guide space, so that the lateral displacement is prevented.

According to a second aspect of the present invention, there is provided a press-connecting connector according to the first aspect.
The leading end of the sliding rod is inclined in a chamfered shape to guide the introduction into the guide space.

In the initial state, the rear holder which is not engaged with the guide space is chamfered and the inclined front end is engaged with the guide space with the rotation. The introduction guide is performed by absorbing a slight deviation, so that the so-called rear holder pick-up property can be improved.

According to a third aspect of the present invention, in the press-connecting connector according to the first or second aspect of the present invention, the tip of the sliding rod is rotated in the guide space by the rotation of the rear holder. It is characterized in that a locking surface is provided for sliding contact.

According to this press-connecting connector, the rear holder is rotated by being supported by the hinge that regulates the position as the center of rotation and the tip of the sliding rod that slides on the locking surface. Unnecessary entry into the inside is suppressed, and stable rotation is performed.

According to a fourth aspect of the present invention, there is provided the press-connecting connector according to any one of the first to third aspects, wherein the front end of the rear holder on the hinge side is connected to the upper opening when the rear holder is closed. A locking projection that engages with the facing housing body is formed to protrude.

According to this press-connecting connector, when the rear holder is closed, the locking projection is locked to the inner surfaces of the upper and lower walls facing the upper opening of the housing body, so that the impact force is particularly larger than that of the rear end. Even if it receives, the hinge side end does not rise above the upper and lower wall surfaces.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a press-connecting connector according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows an embodiment of a press-connecting connector according to the present invention,
FIG. 2 is a cross-sectional view of the press-connecting connector in FIG. 1, FIG. 3 is a partially enlarged cross-sectional view of the press-connecting connector showing an operation when closing the rear holder, and FIG. 4 is a closed state of the rear holder. Sectional view of a press-connecting connector, FIG.
FIG. 4 is a perspective view of the press-connecting connector with the rear holder closed.

As shown in FIG. 1, the press-connecting connector 1 of this embodiment is turned around a housing body 2 and upper and lower walls 2C (only the upper wall is shown in the figure) of the housing body 2 via hinges 3, respectively. Movably connected to the housing body 2
And a rear holder 4 capable of closing the upper opening 13 formed on the rear end side of the vehicle.

The housing body 2 has a plurality of terminal accommodation chambers 5.
Are arranged side by side, and each terminal accommodating chamber 5 accommodates a press contact terminal 11. The terminal accommodating chamber 5 is formed vertically with the intermediate wall 51 interposed therebetween. However, since the configuration on the upper and lower sides is the same, only the upper terminal housing 5 will be described in FIG.

The pressure contact terminal 11 is provided with a pressure contact portion 11A provided in the middle of the elongated body, an electric connection portion 11B provided in front of the pressure contact portion 11A (see FIG. 2), and provided behind the pressure contact portion 11A. And a wire crimping portion 11C. In addition, as shown in FIG. 2, a pocket 5 </ b> A is provided on the front side of the housing main body 2, which has an upper and lower wall 2 </ b> C and accommodates the electrical connection portion 11 </ b> B. A locking groove 2B is formed at the inner rear end.

Furthermore, the left and right side walls 2 of the housing body 2
A guide space 7 extends between A and the terminal accommodating chamber 5 along the connector front-rear direction. The guide space 7 is displaced in the left-right direction in which a sliding rod 4B of the rear holder 4 described below is engaged during rotation to move by receiving an external force of the rear holder 4, in other words, the displacement in the rotation axis direction. Can be restricted to prevent blur in the width direction.

The rear holder 4 closes the upper opening 13 and presses the terminal 11 and the electric wire 12 connected to the terminal 11.
, And is basically formed in a plate-like body as shown in FIGS. 2 and 4. Locking projections 4A are provided near the free ends of the left and right ends of the rear holder 4, and when the rear holder 4 is closed, the closed state is maintained by engaging with the locking groove 2B of the housing body 2 as in the conventional structure. It has become so.

On the other hand, the other end of the left and right ends of the rear holder 4, in other words, the hinge side end, protrudes from the hinge side end, and gradually guides the guide space 7 of the housing body 2 as the rear holder 4 rotates. And a sliding rod 4B that moves in the guide space 7 is provided.

Here, the guide space 7 will be described in detail.
The guide space 7 extends through the lower terminal accommodating chamber, and has a distal end 41 of the sliding rod 4B.
The locking surface 14, which slides with the rotation of the rear holder 4, is formed in a stepped shape. The formation of the locking surface 14 allows the rear holder to move between the hinge and the tip of the sliding rod.
The pivotal movement is supported at the location, and, for example, unnecessary entry into the housing body is suppressed, and stable rotation is performed.

The width W of the outer surface of the pair of sliding rods 4B is shown in FIG.
As shown schematically, the sliding rod 4B is set so as to substantially contact the side wall surface of the guide space 7, so that even if the rear holder 4 receives an external force from the lateral direction, the bending deformation of the hinge 3 is prevented to prevent the rear holder 4 from deforming. 4 is prevented from shifting in the width direction. The tip 41 of the sliding rod 4B is tapered and beveled as shown in FIG. 3, and is displaced in the lateral direction (similar to the rear holder 4 just before being engaged with the guide space 7). Displacement), the sliding rod 4B
Is easily guided into the guide space 7.

At the end of the rear holder 4 on the hinge 3 side, a locking projection 15 is formed so as to engage with the inner surfaces of the upper and lower walls 2C facing the upper opening 13 when the rear holder 4 is closed. The locking projection 15 is provided at a position corresponding to each terminal accommodating chamber 5, and is formed so as not to collide with a partition wall between adjacent terminal accommodating chambers from the time of rotation of the rear holder until the rear holder is closed. . Due to the formation of the locking projections 15, when the rear holder 4 is closed, the locking projections 4A and the locking grooves 2B located near the rear of the connector, and the locking projections 15 and the upper and lower walls 2C located near the front of the connector are closed. It is fixed by the heavy lock, and in particular, the formation of the locking projection 15 suppresses the bidding of the rear holder 4 from the upper and lower walls 2 </ b> C surfaces, and the closed state is firmly maintained.

The inner surface of the rear holder 4, that is, FIG.
Is provided with a locking projection 6 formed so as to protrude from the inner surface. This locking projection 6
Are provided corresponding to the respective terminal accommodating chambers 5. Each locking protrusion 6 includes a first protrusion 6A, one side surface of the first protrusion 6A,
That is, it is configured to have the second protrusion 6C connected to the rear wall 6B and the third protrusion 6D connected to the second protrusion 6C. The periphery of the base of the second projection 6C constitutes a pressing surface 6E for pressing the pressure terminal 11 from above when the rear holder 4 is closed as shown in FIG.

Here, the first protrusion 6A, the second protrusion 6C, and the third protrusion 6D will be further described. The first protrusion 6A is formed in a substantially rectangular parallelepiped, and a side surface connected to the second protrusion 6C forms a rear wall 6B. The rear wall 6 </ b> B pivots the opened rear holder 4 with the hinge 3 as a support shaft and closes the upper opening 13 of the housing body 2 when the rear end of the press contact portion 11 </ b> A of the press contact terminal 11 is closed. By contact, the position of the press contact terminal 11 is regulated at a predetermined position. On the other hand, the second protrusion 6C
Is formed in a ridge along the longitudinal direction of the press contact terminal 11,
When the rear holder 4 is closed, the upper surface thereof
The electric wire 12 arranged on A is pressed. The third protrusion 6D is formed in a substantially rectangular parallelepiped, and when the rear holder 4 is closed, the upper surface of the third protrusion 6D contacts the electric wire 12 located on the front side with respect to the press contact portion 11A.

Next, the assembly of the press-connecting connector 1 will be described. Assembling the insulation displacement connector 1 is performed using the rear holder 4
Is opened to accommodate the press contact terminal 11 in the terminal accommodating chamber 5, the electric wire 12 is arranged on the press contact portion 11A, and the wire 12 is pressed into the press contact portion 11A by a press jig (not shown).
As a result, the press contact blade 11F (see FIG. 3) cuts the coating, and the conductive wire 12A comes into contact with the press contact portion 11A, and the press terminal 1
1 and the electric wire 12 are electrically connected. Then, the wire crimping portion 11 </ b> C provided on the press contact terminal 11 crimps the wire 12. The press-fitting of the electric wire 12 is performed by the closing operation of the rear holder 4 without depending on the pressing jig.
The projection 6C may be configured to perform the projection.

After the connection of the electric wires 12 by the pressure welding jig is completed, the rear holder 4 is rotated about the hinge 3 as a support shaft, and the upper opening 13 is closed by the rear holder 4. In the present embodiment, the following will be described. Notable actions are performed. That is, when the rear holder 4 is completely opened as shown in FIG. 1, the sliding rod 4B is completely lifted from the guide space 7 as shown in FIGS. In this state, when the rear holder 4 is rotated in the direction indicated by the arrow A in FIG. 2 using the hinge 3 as a support shaft, the distal end 41 of the sliding rod 4B that originally floats up from the guide space 7 becomes
Will be hanging on. In this state, when further rotated in the direction of arrow A, as shown by the imaginary line in FIG. 2 and the solid line in FIG.
4, and slides on the locking surface 14 with the rotation of the rear holder 4.

The hinge 3 is formed in a belt shape and does not expand or contract but has flexibility. Therefore, as already mentioned,
During the rotation of the rear holder 4, the hinge 3 does not remain curved, but is partially curved or linearly deformed depending on the closing angle.
Alternatively, the rear holder 4 is easily bent and deformed also in the width direction. In addition, there are cases where both ends in the width direction have advancing or lagging, so that they may be closed in an inclined state. However, according to the present embodiment, the rear holder 4 is rotated by the sliding rods 4B formed at the left and right end portions being engaged with the guide space 7, so that the rear holder 4 can be rotated right and left even if it receives a lateral external force. The movement of the rear holder 4 in the width direction is restrained, and the entire rear holder 4 is prevented from moving in the width direction. In addition, the tip 41 of the sliding rod 4B
3 is tapered as shown in FIG. 3, so that the sliding rod 4B is guided into the guide space 7 without being caught by the edge of the guide space 7.

Further, even when the hinge 3 may be deformed, for example, in a straight line during the rotation of the rear holder 4, the tip 41 of the sliding rod 4B abuts on the locking surface 14 of the guide space 7. Since the rotation is performed, in other words, the rotation is performed by the interaction between the hinge 3 and the locking surface 14, the rear holder 4 is prevented from floating and sinking, and the upper opening 13 is prevented. To be closed without being shifted with respect to the housing body 2. When the rear holder 4 is closed in this manner, the locking projections 4A engage with the locking grooves 2B, and the locking projections 15 sunk into the inner surfaces of the upper and lower walls 2C facing the upper opening 13. The double lock is achieved in the front-rear direction of the connector. Therefore, even if, for example, an impact force greater than the rear end acts on the closed rear holder 4, the rear holder 4 does not compete with the upper and lower wall surfaces at the hinge 3 side end and is opened.

The rear holder 4 is connected to the housing body 2
When the upper opening 13 is closed, as shown in FIG.
The first projection 6A of the locking projection 6 presses down the electric wire 12, and the rear wall 6B abuts the rear end of the press contact terminal 11. Thus, the position of the press contact terminal 11 can be restricted, and at the same time, the wire 12 can be reliably prevented from coming off. In addition, the second protrusion 6C of the locking protrusion 6 presses the electric wire 12 pressed into the press contact portion 11A downward. As a result, the electric wire 12 is prevented from being lifted upward, and connection failure can be reliably prevented. Further, the pressing contact surface 6E, which is a surface close to the locking projection 6, comes into contact with the side wall forming the press contact portion 11A, and presses the press contact portion 11A downward. As a result, the press contact portion 11A is sandwiched between the bottom of the terminal accommodating chamber 5 and the press contact surface 6E, so that the press contact terminal 11 can be reliably prevented from rising.

As described above, the press-connecting connector 1 according to the present embodiment is configured such that the sliding rod 4B provided in the rear holder 4 and the guide space 7 provided in the housing body 2 interact with each other to close the rear holder 4 when the rear holder 4 is closed. The displacement can be prevented, and after closing, the retaining projection 6 provided on the rear holder 4 can reliably prevent the press contact terminal 11 and the electric wire 12 from coming off or floating.

In the above embodiment, a pair of sliding rods is provided at the left and right ends of the rear holder. However, for the purpose of restricting displacement in the rotation axis direction, one sliding rod and one sliding rod are provided. The guide space may constitute the position regulating means.

[0035]

As described above, in the press-connecting connector according to the present invention, the rear holder is rotated by engaging with the guide space of the housing main body. By restricting the position by the engagement between the sliding rod and the guide space, the rotation can be performed while suppressing the horizontal deflection. In other words, when the rear holder is rotated with the hinge as a pivot, the rear holder covers the upper opening of the housing body and is smoothly assembled at a predetermined position without displacement by the above-described position regulating action. Performance can be improved. Further, since the tip of the sliding rod is inclined in a chamfered shape, the lateral displacement of the rear holder can be absorbed and introduced into the guide space, so that the rear holder can be easily picked up by the housing body. Further, since the rear holder is supported by the interaction between the hinge and the sliding rod, the rear holder is rotated with a stable movement. Further, since the rear holder is double locked with the housing body in the closed state, the reliability as a connector is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a press-connecting connector according to the present invention.

FIG. 2 is a sectional view of the press-connecting connector in FIG.

FIG. 3 is an enlarged sectional view of the press-connecting connector showing an operation when closing the rear holder.

FIG. 4 is a sectional view of the press-connecting connector with the rear holder closed.

FIG. 5 is a perspective view of the press-connecting connector with the rear holder closed.

FIG. 6 is a perspective view of a conventional insulation displacement connector.

FIG. 7 is a sectional view of a conventional press-connecting connector.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 press-connecting connector 2 housing body 3 hinge 4 rear holder 4A locking projection 4B sliding rod 5 terminal receiving chamber 6 locking projection 7 guide space 11 press-connecting terminal 12 electric wire 13 upper opening 14 locking surface 15 locking protrusion

Continued on the front page (72) Inventor Toshiaki Ozawa 206-1 Nunobikihara, Haibara-cho, Haibara-gun, Shizuoka Prefecture F-term (reference) 5E012 AA14 AA42 5E087 EE02 EE14 FF08 FF14 GG26 GG32 MM05 QQ04 RR25

Claims (4)

[Claims] 1. A housing body having an upper opening and having a plurality of terminal housing chambers arranged side by side, a press contact terminal housed in the terminal housing chamber, and rotatably connected to the housing body via a hinge. A press-fitting connector having a rear holder for closing the upper opening, a guide space extending along the connector front-rear direction of the housing main body, and projecting from a hinge-side end of the rear holder, and rotating the rear holder. A sliding rod that engages with the guide space when moving, wherein the slide rod engages with the guide space to restrict displacement of the rear holder in the rotation axis direction. 2. The press-connecting connector according to claim 1, wherein a leading end of the sliding rod is inclined in a chamfered shape to guide the introduction into the guide space. 3. The pressure contact according to claim 1, wherein a locking surface is formed in the guide space so that a tip of the slide rod slides in contact with the rotation of the rear holder. connector. 4. An edge on the hinge side of the rear holder,
The press-connecting connector according to any one of claims 1 to 3, wherein a locking projection that locks with the housing body facing the upper opening when the rear holder is closed is formed to protrude.